A266

A266 is an integrated Hall sensors with output drivers designed for electronic commutation of brushless DC motor applications. The A266 includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and complementary open-collector drivers for sinking large current loads. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.

If a magnetic flux density larger than threshold Bop,DO is turned on(low) and DOB is turned off (high). The output state of A266 is held until a magnetic flux density reversal falls below Brp causing DO to be turned off and DOB turned on.

A266 is rated for operation over temperature range from -20 oC to 100 oC and voltage range from 3.5V to 28V. The devices are available in low cost die forms or rugged 4 pin SIP packages.